body {
  padding: 50px;
  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
}

a {
  color: #00B7FF;
}

/* 学生信息表格的样式 */
table{
  border-spacing: 0;
  text-align: center;
  width: 60%;
}

td, th{
  padding: 5px 10px;
  border-top: 1px solid grey;
  border-right: 1px solid grey;
}

td:first-child, th:first-child{
  border-left: 1px solid grey;
}

tr:last-child td{
  border-bottom: 1px solid grey;
}

td a{
  display: inline-block;
  width: 50px;
}

td a:hover{
  color: red;
}

span#filterClass{
  font-size: 16px;
  margin-left: calc(60% - 450px);
}

/* 添加学生信息窗口的样式 */
form#frmAppend{
  width: 60%;
  margin: 30px auto;
  padding: 10px;
  border: 1px solid grey;
  border-radius: 8px;
  box-shadow: 3px 3px 6px black;
  background-color: white;
}

form#frmAppend > p > label{
  display: inline-block;
  padding: 5px 10px;
  border: 1px dashed #cccccc;
  border-top-left-radius: 4px;
  border-bottom-left-radius: 4px;
  width: 70px;
  background-color: #EEEEEE;
}

form#frmAppend > p > input{
  display: inline-block;
  padding: 8px 10px 6px;
  border: 1px dashed #cccccc;
  border-top-right-radius: 4px;
  border-bottom-right-radius: 4px;
}

form#frmAppend > p > span.rdbSex{
  display: inline-block;
  padding: 6px 110px 5px 10px;
  border: 1px dashed #cccccc;
  border-top-right-radius: 4px;
  border-bottom-right-radius: 4px;
}

form#frmAppend input[type=button]{
  cursor: pointer;
  padding: 10px 20px;
  border: 1px solid #cccccc;
  border-radius: 3px;
}

form#frmAppend input[type=button]:hover{
  background-color: lightcoral;
  font-weight: bolder;
}

form#frmAppend > p select{
  display: inline-block;
  padding: 7px 10px 5px;
  border: 1px dashed #cccccc;
  border-top-right-radius: 4px;
  border-bottom-right-radius: 4px;
  width: 190px;
}

div#mask{
  position: fixed;
  left: 0; right: 0; top: 0; bottom: 0;
  z-index: 999;
  background-color: rgba(0,0,0, 0.7);
  display: none;
}

h1 > span.btn{
  display: inline-block;
  text-decoration: none;
  margin-left: 20px;
  color: white;
  font-size: 16px;
  padding: 3px 10px;
  border: 1px solid grey;
  border-radius: 4px;
  background-color: #00B7FF;
  cursor: pointer;
}
p > span.btn{
  display: block;
  float: right;
  color: white;
  font-size: 24px;
  padding: 3px 10px;
  border: 1px solid grey;
  border-radius: 4px;
  background-color: #00B7FF;
  cursor: pointer;
}
span.btn:hover{
  background-color: red;
}